Re: shall we have a TRACE_MEMORY mode

Qingqing Zhou wrote:
> As I follow Relyea Mike's recent post of possible memory leak, I think that
> we are lack of a good way of identifing memory usage. Maybe we should also
> remember __FILE__, __LINE__ etc for better memory usage diagnose when
> TRACE_MEMORY is on?

Hmm, this would have been a great help to me not long ago, so I'd say it
would be nice to have.

About the exact form we'd give the feature: maybe write each
allocation/freeing to a per-backend file, say /tmp/pgmem.<pid>. Also
memory context creation, destruction, reset. Having the __FILE__ and
__LINE__ on each operation would be a good tracing tool as well. Then
it's easy to write Perl tools to find specific problems.

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Alvaro Herrera http://www.CommandPrompt.com/
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